Influence of dimensions of wooden samples for determination of acoustic parameters and sound timbre
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F22%3A43921667" target="_blank" >RIV/62156489:43410/22:43921667 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.apacoust.2022.108895" target="_blank" >https://doi.org/10.1016/j.apacoust.2022.108895</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apacoust.2022.108895" target="_blank" >10.1016/j.apacoust.2022.108895</a>
Alternative languages
Result language
angličtina
Original language name
Influence of dimensions of wooden samples for determination of acoustic parameters and sound timbre
Original language description
Wood is a popular material used in almost all areas of acoustics. The main reason for its vibro-acoustic properties is associated with orthotropic visco-elasticity, describing the ability to conduct, amplify or damp the sound vibrations in different applications. With modern technologies, it is possible to upgrade non-destructive material analysis to more detailed level. This study is dedicated to assess the vibro-acoustic properties of wood using frequency response to an impact excitation. Using one-axis sensors, the parameters such as dynamic modulus of elasticity, radiation coefficient, acoustic impedance, damping coefficient, and acoustic conversion efficiency were determined depending on the anatomical direction of wood. The dependence of sample dimensions and scale of measured parameters was evaluated. Broader description of the damping includes mode shape, its rank, direction and frequency. Comparison of vibro-acoustic behavior across important European species was performed. Results show samples with higher slenderness have smaller differences between MOED calculated from the first bending or first longitudinal mode shape. Analysis of the damping coefficient shows, mode shape, its rank and sample size have greater effect on material damping than frequency of vibrations.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Acoustics
ISSN
0003-682X
e-ISSN
1872-910X
Volume of the periodical
196
Issue of the periodical within the volume
July
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
108895
UT code for WoS article
000853020600011
EID of the result in the Scopus database
2-s2.0-85133819437